The material enters the barrel from the hopper and is conveyed forward to the feeding section through friction shearing action on the inner wall of the barrel and the surface of the screw under the rotating action of the screw, where the loose solid is conveyed forward and compacted at the same time. In the compression section, the depth of the screw groove becomes shallower and further compacted, while heating outside the barrel and friction shearing action between the screw and the inner wall of the barrel, the material temperature rises and begins to melt and the compression section ends The homogenization section makes the material uniform, and extrudes the melt at constant temperature, quantity and pressure. The melt is formed at the back of the machine head and the product is shaped.
1. Extrusion method
According to plasticizing method: dry extrusion and wet extrusion
Pressure mode: continuous extrusion and intermittent extrusion
2. Characteristics
Continuous production, high efficiency, simple operation and wide application range
